Without patience truth and steadfast logic of exalted school of religion wouldnt have been understood. Divine learning of Islam, which blessed humanity, would have lost its color with the passage of time. Ultimate hope of victory of truth over falsehood, which provides life-giving fresh blood for the powerful hands and steadfast steps of believers, would have been silenced forever. Without patience existence of Monotheism, prophet-hood, and prophetic mission would havent been possible and produced any fruits. Rights of deprived people couldnt have been obtained from the tyrants. Also, prayers, fasting, and other deeds would have lost their meanings. During his limited span of life in this world, a human being between his birth and death is a traveler on the road towards final destination. He has been fundamentally created to endeavor as much as possible to bring himself close to final destination. The primary aim of divine religions and great prophets was to build an Islamic society providing a suitable field in which human beings could travel, ultimately reaching their desired goal. *** The present book contains a detailed commentary about the philosophy of daily ritual prayer in Islam. The writer describes Prayer of Islam like a siren for awakening us; a warning at different hours of day and night which provides a program for human beings, requiring their commitment for its execution. Thus, it bestows meanings to spent days and nights and makes them accountable for passing moments. Prayer of Islam by inspiration and repetition of Gods remembrance connects limited vulnerable human beings to infinite and absolute source of power and thus, makes him rely upon that supreme source. Therefore, a believer or a society of believers through establishing prayer burns the roots of deviations, sins, corruptions within themselves and their social environments; as well as at the same time neutralizes completely all kind of sinful thoughts and internal and external motives of wickedness be individual or collective, whatsoever. Certainly prayer protects individual as well as a society from all sorts of undesirable and shameful acts.